Any idea what this is?

[brcjzl]

This red lump appeared a little while ago on Liam's leg. I bring him to the vet on Friday for his last set of shots so I'll ask the vet but I was wondering if anyone has experience with this.

 

[LariP]

Looks like a cyst of sorts. As long as you don't see a tick attached in the really dark area. Good thing you already have a vet appointment.

 

[heff101]

Looks like a histiocytoma.
Heff had one we had to finally get it surgically removed.
Ask you vet if they think thats what it is.

Histiocytoma (dog) - Wikipedia, the free encyclopedia